Boiler-feeder.



PATENTED SEPT. 3,v 1907.

J. gamma. BOILER; FEEDER. APPLIOATION-IILED APR. 15, 1907.

2 SHEETS-SHBET 1.

PATENTED SEPT; 3

J.- F. EEETER. BOILER FEEDER. APPLICATION FILED APBJlE, 1907- I 2SHEETS-SHEET 2.

24m Lina.

UNITED s'rn r gs r nrnnr orrren.

:TOHN F. SENTER, OF OHATTANOOGA, TENNESSEE, ASSIGNOR TO SENTERMANUFACTURING COMPANY, OF OI-IATTANOOGA, TENNESSEE, A CORPORATION OFTENNESSEE.

BOILER-FEEDER.

Specification of Letters Patent.

Patented Sept. 3, 1907.

Application filed April 15,1907. fierial No. 368,289.

To all whom it may concern:

Be it known that 1, JOHN F. SENlER, a citizen of the United States ofAmerica, and a resident of the city of Chattanooga, in the county ofHamilton and State of Tennessee, have invented certain new and usefull1n provements in Boiler-Feeders, of which the following is a full andclear specification, reference being had to the accompanying drawings,in which- Figure .l. is a view partly in side elevation and partly invertical. section showing my apparatus applied to a boiler; Fig. 2 aview taken at right angles to Fig. 1 and being partly in elevation andpartly in vertical section; and Fig. 3 a detail vertical section of thepump valve.

The object of this invention is to provide a compact,

1 5 simple and reliable automatic boiler feeder of that type employing agravitating tank arranged abo e or on the level of the water-line of theboiler and adapted by its vertical movement to control the opening andclosing of the pump valve, as more fully hereinafter set forth.

Referring to the drawings annexed by reference characters, a designatesa water tank which is supported in a horizontal position by a pair ofpipes b and b arranged parallel with each other and having their outerends turned upward and connected to thebottom of the tank, the end ofthe pipe b being carried up into the tank to a point above the normalwater-level therein, The oppositeends of these pipes b and b are turnedinward toward each other and extended through stuffing-boxes intooppositely projecting horizontal portions of a standard or support 0,these inwardly extending portions of the pipes serving as pivots ortrunnions, permitting the tank to rise and fall.

The pipe b communicates with a passage (1 which leads down through apipe which is attached to and supported upon the top of the boiler. Thissupporting pipe or tube is provided with an extension 0 which dependsinto the boiler to a point below the low water level. The other pipe bhas its inner end in communication with a passage j, which passage isconnected at its upper end to a pipe I which extends above the normalwater level in the governing tank, its lower end extending down throughthe top of the boiler far enough to bring its lower open end to a pointabout coincident with the normal water level in the boiler.

Attached to the pipes b and b is an up-standing arm h whose upper end ispivoted to the shorter arm of the lever 11, this lever being pivoted ina transverse slot in the upper end of the support and having its freeend provided with an adjustable counter-weight j. Just back of the pivotoithis lever i the upper edge of the lever is formed into a cam k,which, when the weighted end of the lever is elevated, impinges againstthe lower end of a valve stem Z and lifts the same. This valve 5 5 stemextends up into the pump controlling valve which is of the twin diskbalanced type and is normally forced open by means of a coil spring inconfined in the casing extending upwardly from the valve casing andwhich has its tension regulated by means of a suitable set screw. 6 0

With the construction above described, it will be observed that whilethe water in the boiler is above the desired level, the pressure willforce the water up into the tank. When the tank is filled or nearlyfilled with water the weight thereof overbalances the counter- 6 5Weight thus causing the cam k to hold the pump-control valve closed butwhen the level of the Water gets below the end of the pipe 9 steam willpass up through said pipe into the tank and permit the water therein toflow back by gravity into the boiler, thus reducing the weight of thetank and allowing the counter-weight j to overbalance and raise it. Thefalling oi the counterweight causes cam is to descend and thus permitthe trol the pump (as is the case where only one boiler is 0 in theplant) the steam to the pump is piped through the control valve so thatthe apparatus will shut off and turn on the steam to the pump, and alsothat where the apparatus is to be used on a heating system where thereis a low pressure, the water supply from the main or the tank is pipedthrough the control valve.

By extending the pipe 7 above the normal waterlevel in the governingtank water will be prevented from flowing upward through said pipe tothe governing tank, as it will require less pressure to force the water9 up through the column and pipe d.

Having thus fully described my invention, What I claim as new and desireto secure by Letters Patent,

In combination with a generator, a tubular standard mounted thereon andhaving a pipe connected at its lower end and extending into thegenerator below the required level, a pair of horizontal outwardlyextending tubular projections on said standard, the interior of one ofsaid projections being in communication with the interior of thestandard, a governing tank, a pipe connected to one end of said tank atthe bottom thereof and provided with a horizontal portion extending intoone of the tubular extensions of the standard and placing said tank incommunication with the interior of said standard, a second pipeconnected to the bottom of the tank, and extending upward therein to apoint near the upper side thereof, said pipebeing provided with ahorizontal portion extending into the other tubular extension of thestandard, a pipe connecting the interior of this latter tubularprojection to the generator and terminating at the liquid level therein,

, said pipe between the standard and the generator extending above thenormal water level in the governing tank and placing the interior ofsaid tank in communication with the interior of the generator, and thepipes connect ing the standard to the governing tank supporting the sameand permitting said tank to have an up and down swinging movement, alever pivoted on the standard and carrying a counter'balance Weight atone end, a link conmeeting the shorter arm of said lever to the tankarms, a pump-controlling valve provided with a depending valve stem, acam on the lever adapted to engage said stem,

10 and means for normally tending to force said valve to its openposition, the cam portion of the lever being adapted to close said valvewhen tile governing tank over-balances the counter-Weight on the lever.

In testimony whereof I hereunto aflix my signature in the presence oftwo Witnesses this 8 day of April 1907.

JOHN F. SENTER.

Witnesses P. J. CASEY, F. W. SENTER.

